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PmBeGe2Ir

Alexandria ALEX

Alex-ID: agm005016801 · Space group: I-4m2 (#119)

Basic Information

Formula
PmBeGe2Ir
Alex-ID
agm005016801
Elements
4
Sites
5
Space group
I-4m2 (#119)
Crystal system
tetragonal
Volume
87.19
ų
Cell a
4.0247
Å
Cell b
4.0247
Å
Cell c
6.0889
Å
α angle
109.30
°
β angle
109.30
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
PmBeGe2Ir
Pm
1.00 · 20.0%
Be
1.00 · 20.0%
Ge
2.00 · 40.0%
Ir
1.00 · 20.0%

Energy & Stability

Energy above hull
0.1396
eV/atom
Formation energy
-0.5583
eV/atom
Corrected total energy
-29.3641
eV
Raw total energy
-29.3641
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.3998
eV
DOS at Fermi level
2.4789
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABCD2_1563_spg119

Decomposition

Be3Ir Pm3Ge5 PmGe2Ir Ge

Computed at

2022-07-03 22:35:25.217793

Citation

Alexandria website
https://alexandria.icams.rub.de/
Attribution

The crystal structure and related material properties of this entry were obtained from the Alexandria database (Alex-ID: agm005016801).

Reference

Th. Cavignac, J. Schmidt, P.-P. De Breuck, A. Loew, T. F. T. Cerqueira, H.-C. Wang, A. Bochkarev, Y. Lysogorskiy, A. H. Romero, R. Drautz, S. Botti and M. A. L. Marques. AI-Driven expansion and application of the Alexandria database. J. Phys. Mater. 9, 025014 (2026). https://doi.org/10.1088/2515-7639/ae6620

BibTeX
@article{Cavignac2026Alexandria,
  author  = {Cavignac, Th{\'e}o and Schmidt, Jonathan and De Breuck, Pierre-Paul and Loew, Antoine
             and Cerqueira, Tiago F. T. and Wang, Hai-Chen and Bochkarev, Anton
             and Lysogorskiy, Yury and Romero, Aldo H. and Drautz, Ralf and Botti, Silvana
             and Marques, Miguel A. L.},
  title   = {{AI}-Driven expansion and application of the {A}lexandria database},
  journal = {Journal of Physics: Materials},
  year    = {2026},
  volume  = {9},
  number  = {2},
  pages   = {025014},
  doi     = {10.1088/2515-7639/ae6620},
  url     = {https://doi.org/10.1088/2515-7639/ae6620}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# CIF generated by HEAS from Alexandria entry agm005016801
data_agm005016801
_cell_length_a     4.02465
_cell_length_b     4.02465
_cell_length_c     6.08888
_cell_angle_alpha  109.29863
_cell_angle_beta   109.29863
_cell_angle_gamma  90.00000
_cell_volume       87.19124
_symmetry_space_group_name_H-M 'P 1'
_symmetry_Int_Tables_number 1
loop_
_symmetry_equiv_pos_as_xyz
  'x, y, z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
  Pm1 Pm 0.00000 0.00000 0.00000 1.00000
  Be1 Be 0.75000 0.25000 0.50000 1.00000
  Ge1 Ge 0.61979 0.61979 0.23957 1.00000
  Ge2 Ge 0.38021 0.38021 0.76043 1.00000
  Ir1 Ir 0.25000 0.75000 0.50000 1.00000
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